diff options
| author | Daniel Friesel <derf@finalrewind.org> | 2018-10-19 09:01:36 +0200 |
|---|---|---|
| committer | Daniel Friesel <derf@finalrewind.org> | 2018-10-19 09:01:36 +0200 |
| commit | 255085d06a75c424cd6b95aaac10056e5de65876 (patch) | |
| tree | 345a6bb1772089e4928e88f5035648f82b51531e /src/arch/arduino-nano-168 | |
| parent | 458c89d71c3aa22eb5e83d4e34930a8978c0ef7e (diff) | |
arduino nano: support additional CPU frequencies
Diffstat (limited to 'src/arch/arduino-nano-168')
| -rw-r--r-- | src/arch/arduino-nano-168/Makefile.inc | 29 |
1 files changed, 27 insertions, 2 deletions
diff --git a/src/arch/arduino-nano-168/Makefile.inc b/src/arch/arduino-nano-168/Makefile.inc index 534ac27..a56e62a 100644 --- a/src/arch/arduino-nano-168/Makefile.inc +++ b/src/arch/arduino-nano-168/Makefile.inc @@ -7,7 +7,8 @@ BAUD = 19200 cpu_freq ?= 16000000 COMMON_FLAGS += -Werror=overflow -COMMON_FLAGS += -mmcu=${MCU} -DF_CPU=16000000UL -DMULTIPASS_ARCH_arduino_nano +COMMON_FLAGS += -mmcu=${MCU} -DMULTIPASS_ARCH_arduino_nano +COMMON_FLAGS += -DF_CPU=${cpu_freq}UL COMMON_FLAGS += -flto COMMON_FLAGS += -DMULTIPASS_ARCH_HAS_I2C @@ -39,6 +40,30 @@ ifneq ($(findstring timer,${arch_drivers}), ) TARGETS += src/arch/arduino-nano/driver/timer.cc endif +ifeq (${cpu_freq}, 16000000) + uart_baud = 57600 +else ifeq (${cpu_freq}, 8000000) + uart_baud = 38400 +else ifeq (${cpu_freq}, 4000000) + uart_baud = 38400 +else ifeq (${cpu_freq}, 2000000) + uart_baud = 19200 +else ifeq (${cpu_freq}, 1000000) + uart_baud = 9600 +else ifeq (${cpu_freq}, 500000) + uart_baud = 4800 +else ifeq (${cpu_freq}, 250000) + uart_baud = 2400 +else ifeq (${cpu_freq}, 125000) + uart_baud = 1200 +else ifeq (${cpu_freq}, 62500) + uart_baud = 300 +else + uart_baud = 9600 +endif + +COMMON_FLAGS += -DBAUD=${uart_baud}UL + OBJECTS = ${TARGETS:.cc=.o} .cc.o: @@ -58,7 +83,7 @@ arch_clean: ${QUIET}rm -f ${OBJECTS} build/system.hex monitor: - ${QUIET}screen ${PORT} 115200 + ${QUIET}screen ${PORT} ${uart_baud} arch_help: @echo "arduino-nano specific flags:" |